Dark blue cloudy sky

What is Kelvin Helmholtz?

Perhaps you have come across them, maybe you are seeing them for the first time. These clouds, known as wave clouds, resemble ocean waves rolling at equal intervals and are one of the rare types. It is believed that these clouds with their mesmerizing appearance inspired the swirls we see in Vincent Van Gogh's painting "Starry Night." So, how does this type of cloud form? They arise when two different layers of air in our atmosphere move at different speeds and occur when there is a strong vertical shear between the two air currents, causing the winds to blow faster at upper levels than at lower levels.

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Glossary

The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.

The scientific study of climate, focusing on the analysis of long-term weather patterns and trends over time.

A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.

The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...

A weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...

A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...

The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.